8081973081 has 48 divisors (see below), whose sum is σ = 14477823360. Its totient is φ = 4230420480.

The previous prime is 8081973061. The next prime is 8081973089. The reversal of 8081973081 is 1803791808.

It is not a de Polignac number, because 8081973081 - 2²³ = 8073584473 is a prime.

It is a super-2 number, since 2×8081973081² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8081973089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69625 + ... + 144953.

It is an arithmetic number, because the mean of its divisors is an integer number (301621320).

Almost surely, 2^8081973081 is an apocalyptic number.

It is an amenable number.

8081973081 is a deficient number, since it is larger than the sum of its proper divisors (6395850279).

8081973081 is a wasteful number, since it uses less digits than its factorization.

8081973081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75486 (or 75483 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 8081973081 is about 89899.7946660614. The cubic root of 8081973081 is about 2006.8078901055.

The spelling of 8081973081 in words is "eight billion, eighty-one million, nine hundred seventy-three thousand, eighty-one".